High Quality Heat Transfers

I'm looking to do a small amount of heat transfers but interested in what other shops have had success using and also interested in what kinds of transfers there are the are as close to screen print quality as possible. Any input would be much appreciated!

Closet heat transfer available on the market that is very similar to screen printing are named, Screen printing heat transfers/ plastisol heat transfers. These are screen printed heat transfers. Instead of screen printing direct to garment, the design is screen printed onto transfer paper then heat press applied. Check out proworldinc, under heat transfer category.